OBD Guide

P1775

Solenoid Switch Valve Latched In TCC Position

P1775 is an OBD-II diagnostic trouble code meaning: Solenoid Switch Valve Latched In TCC Position. Common causes: mechanical stuck solenoid valve, contaminated or old transmission fluid. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Hard gear shifts
  • Increased engine speed when stopping
  • Increased fuel consumption
  • Vibration when driving at low speeds
  • Check Engine light comes on

Causes

  • Mechanical stuck solenoid valve
  • Contaminated or old transmission fluid
  • TCC solenoid malfunction
  • Problems with wiring or connectors
  • Transmission control module (TCM) malfunction

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose TCC solenoid operation
  3. Check the integrity of wiring and connectors
  4. If necessary, replace the solenoid valve
  5. Reset transmission adaptations

Related codes

Error P1775 by Vehicle Brand

FAQ

What does the P1775 code mean?

P1775 is an OBD-II diagnostic trouble code that indicates: Solenoid Switch Valve Latched In TCC Position

What causes a P1775 error code?

The most common causes of P1775 include: Mechanical stuck solenoid valve; Contaminated or old transmission fluid; TCC solenoid malfunction; Problems with wiring or connectors.

How do I fix a P1775 diagnostic trouble code?

To fix P1775: Check the level and condition of the transmission fluid. Diagnose TCC solenoid operation. Check the integrity of wiring and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1775?

Yes, but get it checked soon

How much does it cost to fix P1775?

The estimated repair cost for P1775 is $17–67. Actual cost depends on your vehicle, location, and labor rates.

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